Sibling's grandson.
great-nephew.
My great-nephew is a good person.
Half-first cousin’s grandson.
My half-first great-cousin-nephew is a good person.
Second cousin's grandson.
My second great-cousin-nephew is a good boy.
My second great-cousin-nephew is a good person.
Sibling's great-grandson.
My great-great-nephew is a good person.
great-great-nephew.
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